Guillaume was born about 1245, the son of unknown parents. The place is not known.
He died in 1294. The place is not known.
His wife was Sibylle de Solignac, who he married in ABT 1275. The place has not been found. Their only known child was Luce (?-1337).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1245 |
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| Death | 1294 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | seigneur de Cornillon | |||||
| Nobility Title | damoiseau |